diff --git a/README.md b/README.md
index 75aed0c3..2192f824 100644
--- a/README.md
+++ b/README.md
@@ -38,7 +38,7 @@ const is = require('is-thirteen');
 is(13).thirteen(); // true
 is(12.8).roughly.thirteen(); // true
 is(6).within(10).of.thirteen(); // true
-is(2009).yearOfBirth(); // true
+is(2011).yearOfBirth(); // true
 
 // check your math skillz
 is(4).plus(5).thirteen();      // false